Tonight, the 15th Annual Interactive Achievement Awards are going down at DICE in Las Vegas. The winners aren't selected by TV voters, or magazine readers, they're picked by 20,000 members of the Academy of Arts and Interactive Sciences. In other words, the peers of those nominated.

The show has just wound up, and here's the full list of winners:

Best Original Music Composition: Portal 2
Best Sound Design: Battlefield 3
Best Story: The Elder Scrolls V: Skyrim
Best Character Performance: Wheatley
Best Downloadable game: Bastion
Best Casual Game: Fruit Ninja Kinect
Social Networking Game of the Year: Sims Social
Role-playing / MMO Game of the year: The Elder Scrolls V: Skyrim
Outstanding Innovation in Gaming: Skylanders (!)
Sports Game of the Year: FIFA 12
Racing Game of the Year: Forza 4
Fighting Game of the Year: Mortal Kombat
Strategy / Simulation Game of the Year: Orcs Must Die
Hall of Fame 2012 Inductee: Tim Sweeney
Family Game of the Year: LittleBigPlanet 2
Mobile Game of the Year: Infinity Blade 2
Handheld Game of the Year: Super Mario 3D Land
Adventure Game of the Year: Batman: Arkham City
Outstanding Achievement in Online Gameplay: Star Wars: The Old Republic
Outstanding Achievement in Connectivity: Portal 2
Action Game of the Year: Call of Duty: Modern Warfare 3
Outstanding Achievement in Animation: Uncharted 3
Outstanding Achievement in Art Direction: Uncharted 3
Outstanding Achievement in Visual Engineering: Uncharted 3
Outstanding Achievement in Gameplay Engineering: The Elder Scrolls V: Skyrim
Outstanding Achievement in Game Direction: The Elder Scrolls V: Skyrim
Game of the Year: The Elder Scrolls V: Skyrim